COPD: Causes, Symptoms, Diagnosis, Treatment & Prevention

cop4dVolume 12, Issue 2 - 2025. Chronic Obstructive Pulmonary Diseases: of the COPD Foundation is an open access, peer-reviewed medicalscientific dedicated to publishingEnd stage chronic obstructive pulmonary disease (COPD), also referred to as stage 4 COPD, is the most severe stage of the condition. It can cause symptoms such as